router.php

<?php

declare(strict_types=1);

require 'vendor/autoload.php';

final class FrontEndRouter
{

    public static function start_auth()
    {
        if (!isset($_SERVER['PHP_AUTH_USER'])) {
            header('WWW-Authenticate: Basic realm="DPDATADEV"');
            header('HTTP/1.0 401 Unauthorized');
            echo "AUTH FAIL: INVALID USER";
            exit;
        } else if ((isset($_SERVER['PHP_AUTH_USER']) && ($_SERVER['PHP_AUTH_USER'] === 'dpauley')) && (isset($_SERVER['PHP_AUTH_PW']) && $_SERVER['PHP_AUTH_PW'] === '')) {
            self::handleRoutes();
        } else {
            header('WWW-Authenticate: Basic realm="DPDATADEV"');
            header('HTTP/1.0 401 Unauthorized');
            echo "AUTH FAIL: INVALID OR MISSING PW";
        }
    }

    public static function start_no_auth()
    {
        self::handleRoutes();
    }

    private static function home_route_handler()
    {
        header('Location:journal.php');
    }

    private static function handleRoutes(): void
    {
        $dispatcher = FastRoute\simpleDispatcher(function (FastRoute\RouteCollector $r) {
            $r->get('/', self::home_route_handler());
        });

        // Fetch method and URI from somewhere
        $httpMethod = $_SERVER['REQUEST_METHOD'];
        $uri = $_SERVER['REQUEST_URI'];

        // Strip query string (?foo=bar) and decode URI
        if (false !== $pos = strpos($uri, '?')) {
            $uri = substr($uri, 0, $pos);
        }
        $uri = rawurldecode($uri);

        $routeInfo = $dispatcher->dispatch($httpMethod, $uri);

        //TODO -- pretty simple setup for now
        switch ($routeInfo[0]) {
            case FastRoute\Dispatcher::NOT_FOUND:
                // ... 404 Not Found
                break;
            case FastRoute\Dispatcher::METHOD_NOT_ALLOWED:
                $allowedMethods = $routeInfo[1];
                // ... 405 Method Not Allowed
                break;
            case FastRoute\Dispatcher::FOUND:
                $handler = $routeInfo[1];
                $vars = $routeInfo[2];
                // ... call $handler with $vars
                break;
        }
    }
}